OSB is pretty strong, but it isn’t built to withstand the elements. So when the OSB is on, it is covered with a foil,
plastic/tyvek like, which is a water and air barrier. Wrapped up like this, the wall is ready for its final outside layer;
siding.That basically means slapping on horizontal boards of cedar wood with an overlap of about half an inch.

Once that cedar is stained it will match the stained logs. But for now the eastern gable end is water proof.
So tomorrow the scaffolding moves to the western Gable end to do framing and sheathing on that side.